Nut-lock.



No. 727,152. PATENTED MAY 5, 1903.

@Hoff/MM35 UNITED STrMrEs'` `l Patented May 5,' 1903.

PERLEY L. KIMBALL, OE RELLOwsEALLs, VERMONT, AsslCNoR To VER- MONT EARM MACHINE COMPANY, OE RELLOws EALLs, VERMONT, A

CORPORATION OF VERMONT.

NUT-LOCK.

sPECIFICATroN forming-pea er Lettere Patent N e. 727,152, dated Mey 5, 1903. Appneeneu nea November' 7, 1901. sereine. 81,452. N0 model.)

T0 all whom, Wtag/ concern:

Be it known that I, PERLEY L. K1MBALL, a citizen of the United States, and a resident of Bellows Falls, in the county of Windham and State of Vermont, have invented certain new and useful Improvements in Devices in the Nature of Nut-Locks, of which the' following is a full, clear, and exact description, whereby any one skilled in the art may make and use the same. y y

The object of my invention is to produce a device of the class specified having features of novelty and advantage which is particularly adaptable for use in connection with the bearings of centrifugal separators.

I have shown my invention as appliedto the bearings of a centrifugal separator.

In the drawings, Figure l represents a view in central Vertical section of the separatorbearing and the n ut used in connection therewith. Fig. 2 is a side elevation ofthe threaded neck-bearing andthe device thereon. Fig. 3 is a section on the line a; of Fig. 2.

In the drawings the letter A denotes the spindle,which carries the separator-bowl, and B denotes what is Called the neck-bearing.

It will be noted that at the top the neck-bear-- extending into the Opening formed by the re-- curved part of the spring.

In machines ot' this class which revolve at high rates of'speed it is notpracticable to have a perfectly rigid bearing for reasons which are clearly apparent. By the structure above described the neck-bearing for the spindle is supported on a spring, and by forcing the conical part of the sleeve D upward into the recurved part of the spring the compression of the spring is increased and the support for It will be seen from Fig. 1 that the upperY The lower part of the spring is l the neck-bearing more nearly approaches rigidity-that is to say, that while at all times this bearing is capable of slight vibration or yielding movementtheadjustmentof thecompression of the spring by means of the sleeve D permits of maintaining the bearing more or less rigid, as desired. Heretofore it has been customary to adjust and maintain the position of this sleeve D by means of two nutsl operated bywrenches. The adjustment very often has toY be fixed while the machine is running, andV this has been Very di'cult to accomplish heretofore. The device shown in the drawings by which I accomplish the desired result consists of a ring F, which may be either round or polygonal in shape, threaded to fit the threads on the neck-bearing B. Projecting from the periphery of this ring is a hub G, recessed at g. In the recess is located a plunger or pawl having a handle at its Outer end,the plunger or pawl being springactuated inwardly, the inner end of the plunger or pawl being adapted to engage the grooves in the neck-bearing B to yhold the nut or ring in position. Vhen an adjustment of the bearing is desired, the plunger or pawlis simply redrawn from the grooves against the spring and the ring turned as much as desired or until the plunger orpawlengages another of the grooves under the influence of the spring, thus locking the nut in position.

I claim as my invention-V In combination, the rotary shaft, the hollow cylinder' exteriorly.screw-threaded and longitudinally slotted, the cupshaped recurved spring adapted to support the hollow cylinder both vertically and laterally, the wedge-shaped sleeve entered between said spring and said cylinder, the nut bearing against the lower end of said wedge-shaped sleeve, the recessed hub on said nut, the pawl located in said hub and extending through the wall of the nut movable radially and spring-pressed inwardly, and the operatinghandle for said pawl, substantially as described and for the purposes set forth.

PERLEY L. KIMBALL.

Witnesses:

F. C. HILDRETH, LEON J. BALL. 

